title: Graphene-based hollow spheres as efficient electrocatalysts for oxygen reduction.
abstract: A facile and straightforward approach is developed for the construction of graphene-based hollow spheres. An electron rich sodium-ammonia solution is used to effectively restore the π-conjugation of graphene. The hollow spheres exhibit excellent electrocatalytic activity towards oxygen reduction without catalyst deactivation.
authors.affiliation: Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Tsinghua University, 100084, China. jhli@mail.tsinghua.edu.cn.
authors.forename: Longfei
authors.initials: L
authors.lastname: Wu
authors.forename: Hongbin
authors.initials: H
authors.lastname: Feng
authors.forename: Mengjia
authors.initials: M
authors.lastname: Liu
authors.forename: Kaixiang
authors.initials: K
authors.lastname: Zhang
authors.forename: Jinghong
authors.initials: J
authors.lastname: Li
mesh_terms: D000641:Ammonia / Q000737:chemistry; D002384:Catalysis; D004583:Electrons; D006108:Graphite / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D012964:Sodium / Q000737:chemistry
chemical_list: D000641:Ammonia; D006108:Graphite; D012964:Sodium; D010100:Oxygen